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13 May 2022 | Story Leonie Bolleurs | Photo Leonie Bolleurs
Astrophysics
The Astrophysics Research Group in the UFS Department of Physics recently collaborated with the Institute of Astrophysics of Andalusia (IAA) in Spain and the University College of Dublin (UCD) in Ireland, to install a robotic telescope at the Boyden Observatory. Pictured here, are from the bottom, Teboho Rakotsoana and Simon Rakotsoana from the UFS; Emilio J Garcia from the Institute of Astrophysics of Andalusia; Prof Pieter Meintjes; and Prof Antonio M Carrillo from UCD.

The Astrophysics Research Group in the Department of Physics at the University of the Free State (UFS) is part of an international collaboration with the Institute of Astrophysics of Andalusia (IAA) in Spain and the University College of Dublin (UCD) in Ireland, which focuses on measuring the brightness of transient sources. Knowledge gained from studying these cosmic X-ray sources, which seem to appear in the sky for a short time before disappearing, will lead to a more complete and better understanding of the universe, believes Prof Pieter Meintjes, Professor of Physics and Head of the Astrophysics Programme in the Department of Physics.

To facilitate these observations, a robotic telescope network has been established, with the Boyden Observatory selected as one of the sites for BOOTES 6 (a Burst Observer and Optical Transient Exploring System).

The UFS and the IAA started working on this project more than two years ago. The foundation and pier were built through a local tender, and in January 2020, part of the dome of the structure housing the telescope arrived by ship. Due to the COVID-19 pandemic there were some delays, resulting in the crew from Spain only arriving in South Africa with the telescope and hardware in November 2021, but having to return to their country without completing the installation. They returned in April, and in early May completed assembling the telescope in collaboration with UFS researchers and technicians.

Robotic telescope opportunity to further own research

The main scientific objective of the robotic telescope is to observe and monitor the optic counterparts of gamma-ray bursts as quickly as possible when detected from space or other ground-based observatories.

Prof Meintjes says they will use the telescope to observe these transient sources that goes into an eruptive phase for a short span of time. “Since BOOTES has an enormously fast slew rate, it can start observations of erupting sources within a few seconds, which allows the Astrophysics Research Group to get data very quickly. This will certainly give us an edge over other international astronomy groups that are also involved in the same type of research,” says Prof Meintjes, the local coordinator of the project who is overseeing the whole operation locally. 

He explains the importance of monitoring these packets of enormous energy. “By observing the optical afterglow of the gamma-ray bursts, we can establish its point of origin in space. Furthermore, the shape of the optical afterglow light curve gives insight into the type of mechanism behind the gamma-ray burst, i.e., whether the burst is produced by a collision between two neutron stars or by the explosion of a hypernova event.” 

The knowledge gained with research made possible by the robotic telescope will lead to a more complete and better understanding of the universe. – Prof Peter Meintjes

The UFS Astrophysics Research Group, with its research focus on high-energy astronomy and the physics behind gamma-ray bursts, has a particular interest in this project. As the local custodians of the project and in terms of a memorandum of understanding, the group is guaranteed a certain amount of telescope time for its own in-house observation programmes.

Project expands UFS’ international research footprint

Besides the opportunity for knowledge exchange, this project establishes Bloemfontein as a region where research of international quality is being done and will help to attract talented learners to the UFS. “The successful operation of the robotic telescope may also draw more international groups to bring robotic telescopes to Boyden, thus expanding our international research footprint,” he adds. 

The fact that the Boyden Observatory is in the Southern Hemisphere and has access to the galactic centre region with its host of very interesting astronomical objects and the Magellanic Clouds, makes it a very attractive site for astronomical research,” says Prof Meintjes. 

(Dr Pat van Heerden from the UFS Department of Physics. Photo: Supplied)

“We also have a number of years of experience in robotic telescopes in the sense that we have been hosting the Watcher telescope, operated by the University College Dublin in Ireland, since 2001. Once mounted in middle May 2022, this will then be Boyden’s second robotic telescope.”

News Archive

Academic delivers inaugural lecture on South African foreign policy
2007-08-06

 

In her inaugural lecture Prof. Heidi Hudson from the Department of Political Sciences, focused on the impact that Pan-Africanist sentiments have had on South Africa’s foreign policy. She also put the resulting contradictions and ambiguities into context. At her inaugural lecture were, from the left: Proff. Frederick Fourie (Rector and Vice-Chancellor of the UFS), Heidi Hudson, Engela Pretorius (Vice-Dean: Faculty of The Humanities) and Daan Wessels (Research Associate in the Department of Political Science).
Photo: Stephen Collett

Academic delivers inaugural lecture on South African foreign policy

“We are committed to full participation as an equal partner … opposed to any efforts which might seek to project South Africa as some kind of superpower on our continent. … the people of Africa share a common destiny and must therefore … address their challenges … as a united force...” (Mbeki 1998:198-199).

Prof. Heidi Hudson from the Department of Political Science referred to this statement made by president Mbeki (made at the opening of the OAU Conference of Ministers of Information in 1995) when she delivered her inaugural lecture on the topic: South African foreign policy: The politics of Pan-Africanism and pragmatism.

One of the questions she asked is: “Can the South African state deliver democracy and welfare at home while simultaneously creating a stable, rules-based African community?”

She answers: “South Africa needs to reflect more critically and honestly on the dualism inherent in its ideological assumptions regarding relations with Africa. South Africa will always be expected by some to play a leadership role in Africa. At the moment, South Africa’s desire to be liked is hampering its role as leader of the continent.”

In her lecture she highlighted the ideological underpinnings and manifestations of South Africa’s foreign policy. Throughout she alluded to the risks associated with single-mindedly following an ideologically driven foreign policy. She emphasised that domestic or national interests are the victims in this process.

Prof. Hudson offers three broad options for South Africa to consider:

  • The Predator – the selfish bully promoting South African economic interest.
  • Mr Nice Guy – the non-hegemonic partner of the African boys club, multilaterally pursuing a pivotal but not dominant role.
  • The Hegemon - South Africa driving regional integration according to its values and favouring some African countries over others, and with checks and balances by civil society.

She chooses option three of hegemony. “Politically correct research views hegemony as bad and partnership as good. This is a romanticised notion – the two are not mutually exclusive,” she said.

However, she states that there have to be prerequisites to control the exercise of power. “The promotion of a counter-hegemon, such as Nigeria, is necessary. Nigeria has been more effective in some respects than South Africa in establishing its leadership, particularly in West Africa. Also needed is that government should be checked by civil society to avoid it sinking into authoritarianism. The case of business and labour coming to an agreement over the HIV/Aids issue is a positive example which illustrates that government cannot ignore civil society. But much more needs to be done in this regard. South Africa must also be very careful in how it uses its aid and should focus potential aid and development projects more explicitly in terms of promoting political stability,” she said.

Prof. Hudson said: “It is also questionable whether Mbeki’s Afro-centrism has in fact promoted the interests of ordinary citizens across Africa. Instead, elite interests in some countries have benefited. But ultimately, the single most important cost is the damage done to the moral code and ethical principles on which the South African Constitution and democracy is founded.

“In the end we all lose out. More pragmatism and less ideology in our relations within Africa may just be what are needed,” she said.

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